gstreamer/subprojects/gst-plugins-bad/sys/d3d11/gstd3d11window_swapchainpanel.cpp

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/*
* GStreamer
* Copyright (C) 2019 Seungha Yang <seungha.yang@navercorp.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "gstd3d11window_swapchainpanel.h"
/* workaround for GetCurrentTime collision */
#ifdef GetCurrentTime
#undef GetCurrentTime
#endif
#include <windows.ui.xaml.h>
#include <windows.ui.xaml.media.dxinterop.h>
#include <windows.applicationmodel.core.h>
#include <wrl.h>
#include <wrl/wrappers/corewrappers.h>
/* *INDENT-OFF* */
using namespace Microsoft::WRL;
using namespace Microsoft::WRL::Wrappers;
using namespace ABI::Windows::UI;
using namespace ABI::Windows::Foundation;
GST_DEBUG_CATEGORY_EXTERN (gst_d3d11_window_debug);
#define GST_CAT_DEFAULT gst_d3d11_window_debug
/* timeout to wait busy UI thread */
#define DEFAULT_ASYNC_TIMEOUT (10 * 1000)
typedef struct _SwapChainPanelWinRTStorage
{
ComPtr<Xaml::Controls::ISwapChainPanel> panel;
ComPtr<Core::ICoreDispatcher> dispatcher;
ComPtr<IDXGISwapChain1> swapchain;
HANDLE cancellable;
EventRegistrationToken event_token;
} SwapChainPanelWinRTStorage;
/* *INDENT-ON* */
struct _GstD3D11WindowSwapChainPanel
{
GstD3D11Window parent;
SwapChainPanelWinRTStorage *storage;
};
#define gst_d3d11_window_swap_chain_panel_parent_class parent_class
G_DEFINE_TYPE (GstD3D11WindowSwapChainPanel,
gst_d3d11_window_swap_chain_panel, GST_TYPE_D3D11_WINDOW);
static void gst_d3d11_window_swap_chain_panel_constructed (GObject * object);
static void gst_d3d11_window_swap_chain_panel_dispose (GObject * object);
static void
gst_d3d11_window_swap_chain_panel_update_swap_chain (GstD3D11Window * window);
static void
gst_d3d11_window_swap_chain_panel_change_fullscreen_mode (GstD3D11Window *
window);
static gboolean
gst_d3d11_window_swap_chain_panel_create_swap_chain (GstD3D11Window * window,
DXGI_FORMAT format, guint width, guint height, guint swapchain_flags,
IDXGISwapChain ** swap_chain);
static GstFlowReturn
gst_d3d11_window_swap_chain_panel_present (GstD3D11Window * window,
guint present_flags);
static gboolean
gst_d3d11_window_swap_chain_panel_unlock (GstD3D11Window * window);
static gboolean
gst_d3d11_window_swap_chain_panel_unlock_stop (GstD3D11Window * window);
static void
gst_d3d11_window_swap_chain_panel_on_resize (GstD3D11Window * window,
guint width, guint height);
static void
gst_d3d11_window_swap_chain_panel_on_resize_sync (GstD3D11Window * window);
static void
gst_d3d11_window_swap_chain_panel_unprepare (GstD3D11Window * window);
/* *INDENT-OFF* */
class PanelResizeHandler
: public RuntimeClass<RuntimeClassFlags<ClassicCom>,
Xaml::ISizeChangedEventHandler>
{
public:
PanelResizeHandler () {}
HRESULT RuntimeClassInitialize (GstD3D11Window * listener)
{
if (!listener)
return E_INVALIDARG;
window = listener;
return S_OK;
}
IFACEMETHOD(Invoke)
(IInspectable * sender, Xaml::ISizeChangedEventArgs * args)
{
if (window) {
Size new_size;
HRESULT hr = args->get_NewSize(&new_size);
if (SUCCEEDED(hr)) {
window->surface_width = new_size.Width;
window->surface_height = new_size.Height;
gst_d3d11_window_swap_chain_panel_on_resize_sync (window);
}
}
return S_OK;
}
private:
GstD3D11Window * window;
};
template <typename CB>
static HRESULT
run_async (const ComPtr<Core::ICoreDispatcher> &dispatcher, HANDLE cancellable,
DWORD timeout, CB &&cb)
{
ComPtr<IAsyncAction> async_action;
HRESULT hr;
HRESULT async_hr;
boolean can_now;
DWORD wait_ret;
HANDLE event_handle[2];
hr = dispatcher->get_HasThreadAccess (&can_now);
if (!gst_d3d11_result (hr, NULL))
return hr;
if (can_now)
return cb ();
Event event (CreateEventEx (NULL, NULL, CREATE_EVENT_MANUAL_RESET,
EVENT_ALL_ACCESS));
if (!event.IsValid())
return E_FAIL;
auto handler =
Callback<Implements<RuntimeClassFlags<ClassicCom>,
Core::IDispatchedHandler, FtmBase>>([&async_hr, &cb, &event] {
async_hr = cb ();
SetEvent (event.Get());
return S_OK;
});
hr = dispatcher->RunAsync (Core::CoreDispatcherPriority_Normal, handler.Get(),
async_action.GetAddressOf());
if (!gst_d3d11_result (hr, NULL))
return hr;
event_handle[0] = event.Get();
event_handle[1] = cancellable;
wait_ret = WaitForMultipleObjects (2, event_handle, FALSE, timeout);
if (wait_ret != WAIT_OBJECT_0)
return E_FAIL;
return async_hr;
}
static HRESULT
get_panel_size (const ComPtr<Core::ICoreDispatcher> &dispatcher,
HANDLE cancellable,
const ComPtr<Xaml::Controls::ISwapChainPanel> &panel, Size *size)
{
ComPtr<Xaml::IUIElement> ui;
HRESULT hr = panel.As (&ui);
if (!gst_d3d11_result (hr, NULL))
return hr;
hr = run_async (dispatcher, cancellable, DEFAULT_ASYNC_TIMEOUT,
[ui, size] {
return ui->get_RenderSize (size);
});
return hr;
}
/* *INDENT-ON* */
static void
gst_d3d11_window_swap_chain_panel_class_init (GstD3D11WindowSwapChainPanelClass
* klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
GstD3D11WindowClass *window_class = GST_D3D11_WINDOW_CLASS (klass);
gobject_class->constructed = gst_d3d11_window_swap_chain_panel_constructed;
gobject_class->dispose = gst_d3d11_window_swap_chain_panel_dispose;
window_class->update_swap_chain =
GST_DEBUG_FUNCPTR (gst_d3d11_window_swap_chain_panel_update_swap_chain);
window_class->change_fullscreen_mode =
GST_DEBUG_FUNCPTR
(gst_d3d11_window_swap_chain_panel_change_fullscreen_mode);
window_class->create_swap_chain =
GST_DEBUG_FUNCPTR (gst_d3d11_window_swap_chain_panel_create_swap_chain);
window_class->present =
GST_DEBUG_FUNCPTR (gst_d3d11_window_swap_chain_panel_present);
window_class->unlock =
GST_DEBUG_FUNCPTR (gst_d3d11_window_swap_chain_panel_unlock);
window_class->unlock_stop =
GST_DEBUG_FUNCPTR (gst_d3d11_window_swap_chain_panel_unlock_stop);
window_class->on_resize =
GST_DEBUG_FUNCPTR (gst_d3d11_window_swap_chain_panel_on_resize);
window_class->unprepare =
GST_DEBUG_FUNCPTR (gst_d3d11_window_swap_chain_panel_unprepare);
}
static void
gst_d3d11_window_swap_chain_panel_init (GstD3D11WindowSwapChainPanel * self)
{
self->storage = new SwapChainPanelWinRTStorage;
self->storage->cancellable = CreateEvent (NULL, TRUE, FALSE, NULL);
}
/* *INDENT-OFF* */
static void
gst_d3d11_window_swap_chain_panel_constructed (GObject * object)
{
GstD3D11Window *window = GST_D3D11_WINDOW (object);
GstD3D11WindowSwapChainPanel *self =
GST_D3D11_WINDOW_SWAP_CHAIN_PANEL (object);
SwapChainPanelWinRTStorage *storage = self->storage;
HRESULT hr;
ComPtr<IInspectable> inspectable;
ComPtr<Xaml::IDependencyObject> dependency_obj;
Size size;
ComPtr<Xaml::ISizeChangedEventHandler> resize_handler;
ComPtr<Xaml::IFrameworkElement> framework;
if (!window->external_handle) {
GST_ERROR_OBJECT (self, "No external window handle");
return;
}
inspectable = reinterpret_cast<IInspectable*> (window->external_handle);
hr = inspectable.As (&storage->panel);
if (!gst_d3d11_result (hr, NULL))
goto error;
hr = storage->panel.As (&dependency_obj);
if (!gst_d3d11_result (hr, NULL))
goto error;
hr = dependency_obj->get_Dispatcher(storage->dispatcher.GetAddressOf());
if (!gst_d3d11_result (hr, NULL))
goto error;
hr = get_panel_size (storage->dispatcher,
storage->cancellable, storage->panel, &size);
if (!gst_d3d11_result (hr, NULL))
goto error;
GST_DEBUG_OBJECT (self, "client size %dx%d", size.Width, size.Height);
window->surface_width = size.Width;
window->surface_height = size.Height;
hr = MakeAndInitialize<PanelResizeHandler>(&resize_handler, window);
if (!gst_d3d11_result (hr, NULL))
goto error;
hr = storage->panel.As (&framework);
if (!gst_d3d11_result (hr, NULL))
goto error;
hr = run_async (storage->dispatcher,
storage->cancellable, DEFAULT_ASYNC_TIMEOUT,
[self, framework, resize_handler] {
return framework->add_SizeChanged (resize_handler.Get(),
&self->storage->event_token);
});
if (!gst_d3d11_result (hr, NULL))
goto error;
window->initialized = TRUE;
return;
error:
GST_ERROR_OBJECT (self, "Invalid window handle");
return;
}
/* *INDENT-ON* */
static void
gst_d3d11_window_swap_chain_panel_dispose (GObject * object)
{
gst_d3d11_window_swap_chain_panel_unprepare (GST_D3D11_WINDOW (object));
G_OBJECT_CLASS (parent_class)->dispose (object);
}
/* *INDENT-OFF* */
static void
gst_d3d11_window_swap_chain_panel_unprepare (GstD3D11Window * window)
{
GstD3D11WindowSwapChainPanel *self =
GST_D3D11_WINDOW_SWAP_CHAIN_PANEL (window);
SwapChainPanelWinRTStorage *storage = self->storage;
if (storage) {
if (storage->panel && storage->dispatcher) {
ComPtr<Xaml::IFrameworkElement> framework;
HRESULT hr;
hr = storage->panel.As (&framework);
if (SUCCEEDED (hr)) {
run_async (storage->dispatcher,
storage->cancellable, DEFAULT_ASYNC_TIMEOUT,
[self, framework] {
return framework->remove_SizeChanged (self->storage->event_token);
});
}
CloseHandle (storage->cancellable);
}
delete storage;
}
self->storage = NULL;
}
/* *INDENT-ON* */
static IDXGISwapChain1 *
create_swap_chain_for_composition (GstD3D11WindowSwapChainPanel * self,
GstD3D11Device * device, DXGI_SWAP_CHAIN_DESC1 * desc, IDXGIOutput * output)
{
HRESULT hr;
IDXGISwapChain1 *swap_chain = NULL;
ID3D11Device *device_handle = gst_d3d11_device_get_device_handle (device);
IDXGIFactory1 *factory = gst_d3d11_device_get_dxgi_factory_handle (device);
ComPtr < IDXGIFactory2 > factory2;
hr = factory->QueryInterface (IID_PPV_ARGS (&factory2));
if (!gst_d3d11_result (hr, device)) {
GST_WARNING_OBJECT (self, "IDXGIFactory2 interface is unavailable");
return NULL;
}
GstD3D11DeviceLockGuard lk (device);
hr = factory2->CreateSwapChainForComposition (device_handle,
desc, output, &swap_chain);
if (!gst_d3d11_result (hr, device)) {
GST_WARNING_OBJECT (self, "Cannot create SwapChain Object: 0x%x",
(guint) hr);
swap_chain = NULL;
}
return swap_chain;
}
/* *INDENT-OFF* */
static gboolean
gst_d3d11_window_swap_chain_panel_create_swap_chain (GstD3D11Window * window,
DXGI_FORMAT format, guint width, guint height, guint swapchain_flags,
IDXGISwapChain ** swap_chain)
{
GstD3D11WindowSwapChainPanel *self =
GST_D3D11_WINDOW_SWAP_CHAIN_PANEL (window);
SwapChainPanelWinRTStorage *storage = self->storage;
ComPtr<IDXGISwapChain1> new_swapchain;
ComPtr<ISwapChainPanelNative> panel_native;
GstD3D11Device *device = window->device;
DXGI_SWAP_CHAIN_DESC1 desc1 = { 0, };
HRESULT hr;
desc1.Width = width;
desc1.Height = height;
desc1.Format = format;
desc1.Stereo = FALSE;
desc1.SampleDesc.Count = 1;
desc1.SampleDesc.Quality = 0;
desc1.BufferUsage = DXGI_USAGE_RENDER_TARGET_OUTPUT;
desc1.BufferCount = 2;
desc1.Scaling = DXGI_SCALING_STRETCH;
desc1.SwapEffect = DXGI_SWAP_EFFECT_FLIP_SEQUENTIAL;
desc1.AlphaMode = DXGI_ALPHA_MODE_PREMULTIPLIED;
desc1.Flags = swapchain_flags;
new_swapchain =
create_swap_chain_for_composition (self, device, &desc1, NULL);
if (!new_swapchain) {
GST_ERROR_OBJECT (self, "Cannot create swapchain");
return FALSE;
}
hr = storage->panel.As (&panel_native);
if (!gst_d3d11_result (hr, device))
return FALSE;
hr = run_async (storage->dispatcher,
storage->cancellable, INFINITE,
[panel_native, new_swapchain] {
return panel_native->SetSwapChain(new_swapchain.Get());
});
if (!gst_d3d11_result (hr, device))
return FALSE;
new_swapchain.CopyTo (swap_chain);
return TRUE;
}
/* *INDENT-ON* */
static GstFlowReturn
gst_d3d11_window_swap_chain_panel_present (GstD3D11Window * window,
guint present_flags)
{
GstD3D11WindowSwapChainPanel *self =
GST_D3D11_WINDOW_SWAP_CHAIN_PANEL (window);
HRESULT hr;
DXGI_PRESENT_PARAMETERS present_params = { 0, };
IDXGISwapChain1 *swap_chain = (IDXGISwapChain1 *) window->swap_chain;
/* the first present should not specify dirty-rect */
if (!window->first_present && !window->emit_present) {
present_params.DirtyRectsCount = 1;
present_params.pDirtyRects = &window->render_rect;
}
hr = swap_chain->Present1 (0, present_flags, &present_params);
if (!gst_d3d11_result (hr, window->device)) {
GST_WARNING_OBJECT (self, "Direct3D cannot present texture, hr: 0x%x",
(guint) hr);
}
return GST_FLOW_OK;
}
static gboolean
gst_d3d11_window_swap_chain_panel_unlock (GstD3D11Window * window)
{
GstD3D11WindowSwapChainPanel *self =
GST_D3D11_WINDOW_SWAP_CHAIN_PANEL (window);
SwapChainPanelWinRTStorage *storage = self->storage;
SetEvent (storage->cancellable);
return TRUE;
}
static gboolean
gst_d3d11_window_swap_chain_panel_unlock_stop (GstD3D11Window * window)
{
GstD3D11WindowSwapChainPanel *self =
GST_D3D11_WINDOW_SWAP_CHAIN_PANEL (window);
SwapChainPanelWinRTStorage *storage = self->storage;
ResetEvent (storage->cancellable);
return TRUE;
}
static void
gst_d3d11_window_swap_chain_panel_update_swap_chain (GstD3D11Window * window)
{
gst_d3d11_window_swap_chain_panel_on_resize (window, window->surface_width,
window->surface_height);
return;
}
static void
gst_d3d11_window_swap_chain_panel_change_fullscreen_mode (GstD3D11Window *
window)
{
GST_FIXME_OBJECT (window, "Implement fullscreen mode change");
return;
}
static void
gst_d3d11_window_swap_chain_panel_on_resize (GstD3D11Window * window,
guint width, guint height)
{
GstD3D11WindowSwapChainPanel *self =
GST_D3D11_WINDOW_SWAP_CHAIN_PANEL (window);
SwapChainPanelWinRTStorage *storage = self->storage;
run_async (storage->dispatcher, storage->cancellable, INFINITE,[window] {
gst_d3d11_window_swap_chain_panel_on_resize_sync (window);
return S_OK;
}
);
}
static void
gst_d3d11_window_swap_chain_panel_on_resize_sync (GstD3D11Window * window)
{
GST_LOG_OBJECT (window,
"New size %dx%d", window->surface_width, window->surface_height);
GST_D3D11_WINDOW_CLASS (parent_class)->on_resize (window,
window->surface_width, window->surface_height);
}
GstD3D11Window *
gst_d3d11_window_swap_chain_panel_new (GstD3D11Device * device, guintptr handle)
{
GstD3D11Window *window;
g_return_val_if_fail (GST_IS_D3D11_DEVICE (device), NULL);
g_return_val_if_fail (handle, NULL);
window = (GstD3D11Window *)
g_object_new (GST_TYPE_D3D11_WINDOW_SWAP_CHAIN_PANEL,
"d3d11device", device, "window-handle", handle, NULL);
if (!window->initialized) {
gst_object_unref (window);
return NULL;
}
g_object_ref_sink (window);
return window;
}